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Title: New results from RENO and the 5 MeV excess

One of the main goals of RENO (Reactor Experiment for Neutrino Oscillation) is to measure the smallest neutrino mixing angle θ{sub 13} using reactor neutrinos in Korea. RENO is the first reactor experiment taking data with two identical detectors in different locations (Near and Far), which is critical to reduce systematic uncertainty in reactor neutrino flux. Our data taking has been almost continuous since Aug. 2011 and we have collected about 434,000 (54,000) electron anti-neutrinos in the Near (Far) detector by 2013. Using this data (about 800 live days) we present a new result on θ{sub 13}: sin{sup 2}2θ{sub 13} = 0.101 ± 0.008 (stat.) ± 0.010 (syst.). We also report the 5 MeV excess present in the prompt signal spectrum in our data, and its correlation with our reactor thermal power.
Authors:
 [1]
  1. Seoul National University, Department of Physics & Astronomy 1 Gwanak-ro, Gwanak-gu, Seoul, 151-747 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22490645
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1666; Journal Issue: 1; Conference: Neutrino 2014: 26. international conference on neutrino physics and astrophysics, Boston, MA (United States), 2-7 Jun 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CORRELATIONS; ELECTRON ANTINEUTRINOS; MEV RANGE; NEUTRINO DETECTION; NEUTRINO OSCILLATION; RADIATION FLUX; WEINBERG ANGLE